Index: sync/notifier/invalidator.h |
diff --git a/sync/notifier/invalidator.h b/sync/notifier/invalidator.h |
index d5435bcd19bc3badf0315bd3112f352e58116b88..073e43d03811b601b9731d22dc0ec6ba544e61aa 100644 |
--- a/sync/notifier/invalidator.h |
+++ b/sync/notifier/invalidator.h |
@@ -64,6 +64,10 @@ class Invalidator { |
// associated with |handler|. |
virtual void UnregisterHandler(InvalidationHandler* handler) = 0; |
+ // TODO(dcheng): Add comment. |
+ virtual void Acknowledge(const invalidation::ObjectId& id, |
+ const AckHandle& ack_handle) = 0; |
+ |
// Returns the current invalidator state. When called from within |
// InvalidationHandler::OnInvalidatorStateChange(), this must return |
// the updated state. |